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| 引用本文: | 李恒伟,王庆国.结球生菜二氧化碳伤害预警指标的初步筛选[J].包装工程,2022,43(7):35-44. |
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| 结球生菜二氧化碳伤害预警指标的初步筛选 |
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李恒伟,王庆国
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山东农业大学 食品科学与工程学院，山东 泰安 271018
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| 摘要: |
| 目的 研究结球生菜在不同浓度二氧化碳中挥发性成分含量的变化情况，有助于筛选结球生菜二氧化碳伤害预警的特征性成分。方法 将结球生菜放置于动态气调环境中，通过气相色谱-质谱分析其挥发性成分。结果 实验结果表明，结球生菜在0 ℃、氧气的体积分数为3%条件下贮藏时，当环境中二氧化碳的体积分数大于6%时会受到伤害。在伤害和非伤害条件下，氯代十八烷、4-丙基甲苯、4-乙基甲苯、1,2,4-三甲基苯、乙酸十一酯、丁酸癸酯、己二酸单乙酯、己酸己酯、二苯乙烯、二烯丙基二硫醚的变化趋势显著不同，这些成分的变化可能与二氧化碳伤害有关。结论 十四烷、乙酸十一酯和丁酸己酯的浓度在结球生菜开始受到伤害时出现了拐点式变化，这可作为结球生菜受到二氧化碳伤害的候选预警指标。 |
| 关键词: 结球生菜 预警指标 气相色谱-质谱法 动态气调 挥发性成分 |
| DOI：10.19554/j.cnki.1001-3563.2022.07.005 |
| 分类号:TS255.3 |
| 基金项目:山东省泰山产业领军人才项目(LJNY201702) |
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| Preliminary Screening of Warning Indexes for Carbon Dioxide Damage of Head Lettuce |
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LI Heng-wei, WANG Qing-guo
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(College of Food Science and Engineering, Shandong Agricultural University, Shandong Taian 271018, China)
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| Abstract: |
| The work aims to study the changes in the content of volatile components of head lettuce in carbon dioxide of different concentrations, and help to screen the characteristic components of head lettuce for warning of carbon dioxide damage. The head lettuce was stored in a dynamic controlled atmosphere, and the volatile components were analyzed by gas chromatography-mass spectrometry. The experimental results showed that head lettuce stored at 0 ℃ and 3% oxygen was damaged in an environment of 6% (volume fraction) carbon dioxide and above. Under harmful and non-harmful conditions, chlorooctadecane, 4-propyl toluene, 4-ethyl toluene, 1,2,4-trimethylbenzene, undecyl acetate, decyl butyrate, adipic acid mono Ethyl acetate, hexyl hexanoate, stilbene, and diallyl disulfide showed significantly different trends, and the changes in these components may be related to carbon dioxide damage. Tetradecane, undecyl acetate and hexyl butyrate show inflection point changes at the initial injury concentration, which can be used as candidate warning indicators for the occurrence of carbon dioxide injury in head lettuce. |
| Key words: head lettuce warning indicators gas chromatography-mass spectrometry dynamic controlled atmosphere volatile components |
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